The Idaho Add-on for American Truck Simulator has 5 achievements.
Discover every city in Idaho (requires Idaho DLC)
Complete five deliveries of potatoes from Idaho farms (requires Idaho DLC)
Complete perfect deliveries (no damage, no fines, on time) between the following cities: Kennewick - Lewiston; Boise - Twin Falls; Twin Falls - Pocatello; Pocatello - Idaho Falls. Any order or direction counts (requires Washington and Idaho DLCs)
View cutscenes from all viewpoints in Idaho (requires Idaho DLC)
Visit 45th parallel in Idaho - a halfway between the Equator and the North Pole (requires Idaho DLC)